20212553628

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{261509}}^1$

素因数の和:261651

約数の個数: 72

約数和(自身を含む): 54258094800

約数和(自身を除く): 34045541172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 113, 114, 171, 226, 228, 339, 342, 452, 678, 684, 1017, 1356, 2034, 2147, 4068, 4294, 6441, 8588, 12882, 19323, 25764, 38646, 77292, 261509, 523018, 784527, 1046036, 1569054, 2353581, 3138108, 4707162, 4968671, 9414324, 9937342, 14906013, 19874684, 29550517, 29812026, 44718039, 59101034, 59624052, 88651551, 89436078, 118202068, 177303102, 178872156, 265954653, 354606204, 531909306, 561459823, 1063818612, 1122919646, 1684379469, 2245839292, 3368758938, 5053138407, 6737517876, 10106276814, 20212553628]

約数ペア:

[(1, 20212553628), (2, 10106276814), (3, 6737517876), (4, 5053138407), (6, 3368758938), (9, 2245839292), (12, 1684379469), (18, 1122919646), (19, 1063818612), (36, 561459823), (38, 531909306), (57, 354606204), (76, 265954653), (113, 178872156), (114, 177303102), (171, 118202068), (226, 89436078), (228, 88651551), (339, 59624052), (342, 59101034), (452, 44718039), (678, 29812026), (684, 29550517), (1017, 19874684), (1356, 14906013), (2034, 9937342), (2147, 9414324), (4068, 4968671), (4294, 4707162), (6441, 3138108), (8588, 2353581), (12882, 1569054), (19323, 1046036), (25764, 784527), (38646, 523018), (77292, 261509)]